Regenerator construction.



T., E. Kamm.

APPLIOATIN FILED JAN. 7, 1914.

Jipwfi. S. mentada July 21, 19M

2 SHEETS-SHEET 1. .55' @l 4 L A i H J f. I il 7A O f\/ i 53' 5dr- .4 L JI 27 J2 50 y s 5l 6' I /l/ l ll V u B5 75 [1 H H 4 H H H H H H H H His-i 3 A H r-a s=1 H H w H L x E Af/6 HJ T. P3. K/BNVINI REGENERATGRCONSTRUGTlQN. APPLIGATION FILED um?, 1514. l y l @4495 l 3z mente@ July211., 1mv

2 SHEBTSSHEET 2.

m www Hmm am THOMAS H. KENVIN, F GARY, NlO-LNA..

REGENERATOR CONSTRUCTIN.

Specification of Letters Patent.

Patented July 2l, time.

Application led January 7, 1914. Serial No. 810,80.

. To all whom t may concern 'Be it known that I, THOMAS H. KENVIN, acitizen of the United States, residingat Gary, in the county of Lake andState of Indiana, have invented certain-new and useful Improvements inRegenerator Constructions, of which the following is a specification.

The present invention has reference to certain improvements inregenerator constructions, and has reference particularly to thearrangement of the regenerators, and their combination with the furnacewith which they are intended to operate.

It is found that during the operation of the regenerators they rapidlycollect fluedust and the like, which is carried over from the furnacedurin the campaign of heats, so that, after the urnace' has been inoperation for some time, the checkerwork becomes clogged or obstructedby the presence of the flue-dust. For this reason it is necessary toclean out the checkerwork from time to time, and this necessitates atemporary shutting down or throwing out of commission of theregenerator. Furthermore, it is necessary to rebuild the checkerworksfrom time to time, and, of course, this also necessitates a shuttingdown of the regenerator. Under ordinary circumstances, whenever any oneof the regenerators is thrown out of commission, the entire furnacearrangement must be shut down, for the reason that it has been customaryto provide only the necessary or proper number of regeneratorscorresponding to the normal operation of the furnace. For this reason,the operation of the entire furnace must be disconcontinued during thecleaning or reconstruction of a single regenerator.

The main object of the present invention is to provide an arrangement ofregenerators, su,ch that, when a regenerator must be thrown out ofcommlssion elther for cleaning or repair, another regenerator may ivthat the operation of the furnace may pro cecd'uninterrupted. rl`hisarrangement4 will very` greatly increase the load efficiency of thefurnace, and consequently its tonnage .duringthe ye'ar. ln thisconnection, another object of the invention is to so arrange or relatethe regenerators as to occupy the floor or ground space in a highlyethcient manner, so that no additional space p will be required forplacing into eect the arrangement to which the present inventionrelates.

Another object of the invention is to provide a. valve arrangement suchthat the several regenerators may be readily controlled and brought intoor thrown out of commission, thereby greatly facilitating the handlingof the entire arrangement.

Other objects and uses of the invention the same which consists in thefeatures of construction and combinations of parts hereinafter describedand claimed.

In the drawings: lFigure 1 shows a plan view of an arrangement offurnace and regenerators embodying the features of my invention; Fig. 2shows a vertical section on the line Q-v-Q of Fig. 2, lookin in thedirection of the arrows; Fig. 3 s ows ai sec-l tion taken on the line3-3 of Fig. l, looking in the direction of the arrows; and Fig. 4 showsa section taken on the line 4-4 of Fig. 1, looking in the direction ofthe arrows. In the several figures, the regenerators are shown asassociated with an open-hearth furnace 5. The gas regenerators aredesignated 6 and 7 and the air regenerators are designated 8, 9, and 10. Theregenerators S and l0 may he designated the normal air regenerators,while the regenerator 9 is a substitute air regenerator which can bethrown into commission in place of either of the regenerators 8 or 10.lt is preferred that all three of the air regenerators be groupedtogether opposite the central por tion of the furnace, and that the gasregenerators 6 and 7 be located alongside of the air regenerators 8 and9. rangement, all live of the regenerators can be conveniently groupedwithin a space or width substantially the same the length of the furnaceitself, so that the regenerar-or .19 simply serves to fll or occupy aspace which would otherwise be unoccupied. the same time by grouping theregenerators in this manner the regenerator 9 may hesubstituted foreither of the regenerators 8 and l() with equal 4facility without thetions or vpassageways.

rlhe gas supply pipe connections are `desi,curated l1 and l2 and thestack or flue is designated '13. The connections 14., l5, 1.6, 17, and18 are all adapted to place the vari ous rcgcncrators in communicationwith the stack or i'iue, while the connections i9 and will appear from adetailed description of -With this arnecessit of arovidinrr undul loncon-nec QOare adapted Ito, place the gas regenerators 6 and 7 incommunication with the supply connections ll and 12 respectively. Avalve member 2l is provided between each of the gas regenerators and theco 'responding connection 19 or 20, these valve meinbers being soconstructed that they will place their respective regenerators either inconimunication with the tlue or stack, or in communication with theirrespective gas connections. A valve 22 is provided in each oftheconnections l5, 1G and 17,for the purpose of Controlling thecommunication of the corresponding air regenerator with the stack orflue7 or with the air supply eonnection underneath.

The rear end ot' each gas regenerator conin'innicates by means of apassageway il with a vertically extendintgpassageway- 2l, which. inturn, communicates by means of a hori zontal iassageway 25 with the endof the furnace. 'lhe rear end of each of the re.- generators tl and lconin'iunieates by means of a connection 2G with a eorrespomling`passageway 27 beneath the end of the furnace, and each of thepassageways 27 eommunicates with a pair ot' vertically extendingpassageways Q8, which, in turn lead into a'passageway 2S) which leadsinto the end of the furnace.

From the arrangement thus far described, it will be apparent that gasmay be delivered through either of the fas regenerators into thecorrespomline end ol the furnace, burned `gases in the in antiineflowing;` through the other gaf-1 regenerator to the llue or stack, andthat,v on the other hand, air may be delivered through either ot the airregenerators 8 and l() to the corresponding end of the furnace, burnedgases in the meantime passingv through the other air regenerator to thetlue or stack. ln other words, the valve arrangements are such that thedesired periodical reversal of tlow may be securedhrough either of theregenerators above considered.

The rear end of the intermediate or auxiliary air regenerator mayconnnnnr cate by means of the connections 30 and 3l with either of theconnections 2G. The valves 32 and 39 are provided in the eonnections 3and ill respectively, and the valves 34 and 35 are provided between theregenerators S and l0 and their respective conncxttions QU.

From the foregoing it will be seen tl at the regencrator vtl may besubstituted for either of the regenerators i or l0. For ex amplel il' itis desired to shut down the regencrator 8. the valves and 33 may beclosed, leaving;1 the valves 32 and 35 openA This w ill throw thesulistitute regenerator t) into com-mission in place of the regenerator8, -the regeneratoi1 10 continuing,Y to operate as before. On the otherhand by closing the valves and 85 and opening` the valves 33 and 34, theregenerator 9 ma)Y be sub-- stituted for the rcgenerator 10. the regenerator 8 continuingto operate in the normal manner. Of course. when thesubstitute re generator 9 .is in operation, its valve Q2 will beperiodically shifted or reversed to control the flow of air through theregenerator to the furnace, or to allow the flow of burned gases fromthe furnace through the regenerator to the flue or stack. v

The valves 32, 33, 3l, and are conveniently illustrated as damper valveswhich may be manipulated through the medium of cords 55" operating overthe rollers Elli, as best shown in Fig'. et. However, it will beapparent that any other suitable valve arrangement may be adapted.

Another `feature ol my invention has reference to the provision of areceptacle or pocket for the removal of slag1 and the like, which mayvbe carried over from the furnace during its operation. For this purpose,each of the passageways 2G is extended out some distance bevond thevertical passagrew vs 2S, so as to provide a poche lo at the e.\ tremerear end oi the passageway 9G. The floor of this pocket mayv be made toslant toward the rear. so that slagf and the like will collect at therear end in the pocket 3G, where it may he convenientlj7 removed fromtime to time. lt will be noted also that the forward end of therassageway is carried 1upward some distance to provide a weir 3T, so asto largely, if not entirely. prevent the earnvinpj over of slag' fromthe passageways 2S into the regnnerator.

'l desire to call particular attention to the Fact that. bv reason otthe usual length of an open hearth furnace. and by reason of theeustonmry practice of placing the regenerar tors opposite the ends ofthe furnace. there is `generallyv letta (anisiderable space, or di tancebetween the air and gas regenerators, and opposite to the centralportion of the furnace. l wish to point out the fact that. .in thepresent arrangement. l ha 'Je availed nrvself of the presence of thisopen space for the aeeoinniodation oitl the auxiliary rcg'enerator 0, sothat said regenerator may be accominodated without the necessite.7 ofmoving' the customaryand usual regenerators farther apart than the usualcustom. Fur thm-incre, by locating the auxiliary regenerator in the abore mentioned position, the same is so placed that it can relieve thetwo air re- ;enerators with equal facility., thereby enabline it toperform the function of either of said reaenerators without thenecessity of providing; unduly long or to tnons passagewa vs. vit willbe noted in this connection that, at the point where the passageways andill are brought together. their rear walls are curved or bent inward atthe point 38, so as to assist in directing the .air or gases for intiemeequal facility.

While l have herein shown and described only one particular arrangementof furnace and regenerators, the same including the open hearth furnace,still l do not limit myself to this arrangement, except as l may do soin the claims, but include Within the scope of my invention any otherequivalent arrangement of regenerators, or equivalent combination of4regenerators and furnace, such as a heating furnace, for example.

I claim:

l. The combination With a furnace of a regenerator opposite to each endof the same, and an auxiliary regenerator between both of saidregenerators and opposite to the body of the furnace, of a connectionfrom each of the first. mentioned regenerators to the corresponding endof the furnace, connections from the auxiliary regenerator to each endof the furnace, and Valves for substituting the auxiliary' regeneratorfor either ofthe first mentioned regenerators.

2. The combination with. a furnace, a flue, and a source of air supply,of a regenerator opposite to each end of the furnace, a connection fromone end of each regenerator to the corresponding end of the furnace, aconnection from the other end of each regenerator to the flue and to thesource of air supply, an auxiliary regenerator between both of saidregenerators and opposite to the body of the furnace, connections fromone end of said auxiliary rcgenerator to both ends of the furnace, aconnection from the other end of the auxiliary regenerator to the ue andto the source of air supply, valves for controlling the connections ofall of said regencrators either to the flue or to the source of airsupply, and valves for controlling the connections from' all of saidregcnerators to the furnace.

8. The combination with an open hearth furnace, a flue, and a source ofair supply', of a regenerator opposite to each endof the furnace, aconnection from one end of nach regcnerator to the corresponding end ofthe furnace, connections from the other end of each regenerator to theflue and to the source of air supply, an auxiliary regenerator mountedbetween said 4regenerators and opposite to the body of the furnace,connections from one end of said auxiliary regenerator to both ends ofthe furnace, connections from the other end of the auxiliary rcgcncratorto the flue and to the source of air supply, valves for controlling theconnections of all of said regenerator's either to the flue or to thesource of air supply, and valves for controlling the connection of cachof said regencratorsto the furnace.

4. The combination with an open hearth furnace, a ue opposite to thecentral portion of the same, and a source of air supply,

of a regenerator opposite to eachend of the furnace, a connection fromeach of said regenerators to the corresponding end of the furnace, aconnection from the other end of each of said regenerators tothe flueand to the source of air supply an auxiliary regenerator between both ofsaid regenerators and opposite to the central portion of the furnace andopposite to the tine, connections from one end of the auxiliaryregenerator to both ends of the furnace, connections from the other endof the auxiliary regen erator either to the flue or tothe 'source of airsupply, valves for controlling ythe connection of each of saidregenerators either to the flue or to the source of air supply, andvalves for controlling the connection of each of said regenerators tothe furnace.

5.V The combination with an open hearth furnace, a flue, and a source ofair supply, g5 of a regenerator opposite to each end of the furnace, aconnection from one end of each Vregenerator to the corresponding end ofthe furnace, a cross connection joining both of said connectionstogether, connections from the other end of each of said regeneratorsboth to the flue and to the source of air snpply, an auxiliaryregenerator between both of said regenerators and opposite to thecentral portion of the furnace, a connection from one end of theauxiliary regenerator to lsaid cross connection, connections from theother end. of the auxiliary regenerator both tothe flue and to thesource of air supply, valves for controlling the connection me of eachof said regenerators either to the flue or to the source of air supply,a valve in the furnace end of each of the first mentioned regenerators,and valves in the cross connection at both sides of the connection fromthe auxiliary regenerator to the cross connection,

6. The combination with. an open hearth furnace and a battery comprisingan air regenerator and a gas regenei tor adjacent to n@ each end of thefurnace, of a standby regenerator between both of batteries ofregenerators and opposite to central portion of the "furnace,connections from the furnace end of the stand-by regenerator to 11n thefurnace ends of the adjacent stand-by regenerators, connections from theflue end of the stand-by regenerator to the flue ends of the adjacentbattery regenerators, and valves in all of said connections. 12o

'7. The combination with an open hearth furnace, and a batteryconsisting of an air regcnerator and avgas regenerator extending atright angles to the furnace and adjacent to each end thereof, of astandby regenerlas ator between the adjacent battery regeneratcrs andextending right angles to the furnace opposite to the central portionthereof, connections from the furnace end of the stand-by regenerator tothe furnace 13o inmensas ends of the adjacent beteryviegenerators, theadjacent air regenerators, connections 'connections from the ue end byregenwater to he Hue ems of -he adjaCen bery 'egenerators, and Conroflveves in $111 of seid connections.

8. The combination Wh an open hearth furnace and its batteries ofregenerators edjacent to iis ends, each battery comprising an airi-egenertor and a gas regenerator, of a stand-by regenerator opposite tothe eentrnl portion of the furnace and between oi"- tnhe Standfrom thefurnace end of the stand-by regenemtor to the furnace ends of the airregenerators, connections from he flue end of the l' standby regeneratorto the Hue ends of the air regenerators, and valves for ontrolling aliof said connections.

THGMA'S H. KVNVIN. `Witnesses:

THOMAS A. BANNNG, Jr., .FRANCES M. FROST.

